7at i get this also. When i run thunderbolt i shift to 5th slightly early at 115 to 120mph and it does this.
Also on street sometimes hard accel in 4th then shify into 5th. Rarely happens on syreet though. Maybe heat related... i dunno
2009 7at touring
AAM 2.5 true dual exhaust
AAM de test pipes
Z1 headers
AAM 2.75 cold air intake r-line
motodyne m370 manifold
whiteline f/r sway bars
swift lowering springs
quaife LSD
Z1 34 row oil cooler
Z1 brake rotor and pad upgrade
Tune via hills garage
best 1/4 12.841 at 108.7mph 3540lbs with me in it
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